Curbs are raised edges along the sides of streets and sidewalks, designed to separate the roadway from pedestrian areas. They help to define the boundaries of the road and provide a safe space for pedestrians. Curbs can also assist with water drainage, directing rainwater away from the road surface. In addition to their functional purposes, curbs can enhance the aesthetic appeal of urban environments. They come in various materials, such as concrete or stone, and can be shaped or colored to complement surrounding landscapes. Curbs are an essential element of urban planning and design, contributing to both safety and visual harmony in cities.